Explore topic-wise MCQs in Dc Machines.

This section includes 341 Mcqs, each offering curated multiple-choice questions to sharpen your Dc Machines knowledge and support exam preparation. Choose a topic below to get started.

51.

Nogging of a common wooden partition is

A. upper horizontal wooden member
B. lower horizontal wooden member
C. intermediate horizontal wooden member
D. vertical wooden member.
Answer» D. vertical wooden member.
52.

The minimum width of a stair in residential buildings, is

A. 55 cm
B. 70 cm
C. 85 cm
D. 100 cm
Answer» D. 100 cm
53.

In soils possessing low bearing capacity, the type of foundation generally provided, is

A. column footing
B. grillage footing
C. raft footing
D. all the above.
Answer» E.
54.

The type of ashlar masonry in which stones are finely chisel dressed and thickness of joints does not exceed 3 mm, is

A. chamfered ashlar masonry
B. ashlar facing masonry
C. random coursed ashlar masonry
D. coursed ashlar masonry.
Answer» E.
55.

The method of moving each brick through a small horizontal distance before it is finally laid in any brick wall and pressing it by means of brick hammer, is known as

A. trowelling
B. laying
C. grouting
D. placing.
Answer» C. grouting
56.

The columns of multi-storeyed buildings are designed to withstand the forces due to

A. dead loads
B. live loads
C. wind loads
D. all of these.
Answer» E.
57.

Which of the following metal sheets is most effective in preventing dampness ?

A. Copper sheets
B. lead sheets
C. aluminium sheets
D. all the above.
Answer» E.
58.

Black cotton soil is unsuitable for foundations because its

A. bearing capacity is low
B. permeability is uncertain
C. particles are cohesive
D. property to undergo a volumetric change due to variation of moisture content.
Answer» E.
59.

The pile provided with one or more bulles in its vertical shaft, is generally known as

A. under-ream pile
B. friction pile
C. bearing pile
D. sheet pile.
Answer» B. friction pile
60.

The dimensions of a half queen closer, are

A. 9 cm x 9 cm x 9 cm
B. 9 cm x 9 cm x 4.5 cm
C. 9 cm x 4.5 cm x 9 cm
D. 1.8 cm x 4.5 cm x 9 cm.
Answer» D. 1.8 cm x 4.5 cm x 9 cm.
61.

The inclined support at the ends of treads and rises of a stair, is known as

A. baluster
B. header
C. string
D. beam.
Answer» D. beam.
62.

A temporary rigid structure having platforms to enable masons to work at different stages of a building, is known as

A. scaffolding
B. dead shore
C. raking shore
D. under pinning.
Answer» B. dead shore
63.

The line of intersection of two surfaces of a sloping roof forming an internal angle less than 180°, is known as

A. ridge
B. hip
C. valley
D. none of these.
Answer» D. none of these.
64.

A pre-stressed concrete pile is

A. easy to handle
B. lighter in weight
C. extremely durable
D. all the above.
Answer» E.
65.

In places where the soil is soft and has small resistance to the flow of concrete, which one of the following types of piles, is used

A. vibro pile
B. pressure pile
C. Franki pile
D. pedestal pile.
Answer» B. pressure pile
66.

The bond in which headers and stretchers are laid in alternate courses and every stretcher course is started with a three fourth brick bat, is known as

A. English cross bond
B. Dutch bond
C. Monk bond
D. Rat-trap bond.
Answer» C. Monk bond
67.

In flat roof of reinforced cement concrete, the recommended angle of slope, is

A. zero
B. a few degrees
C. 10°
D. 200°.
Answer» C. 10°
68.

The floor is rubbed with oxalic acid, for making its surface

A. free from voids
B. glossy
C. durable
D. uniform.
Answer» C. durable
69.

A covering of concrete placed on the exposed top of an external wall, is known as

A. cornice
B. coping
C. frieze
D. lintal.
Answer» C. frieze
70.

The mortar in which both cement and lime are used as binding materials, is called

A. cement mortar
B. lime mortar
C. fire resistant mortar
D. gauged mortar
Answer» E.
71.

The stone whose crushing strength is maximum, is

A. granite
B. chalk
C. slate
D. sand stone
Answer» B. chalk
72.

A cut in frame of a door to receive the shutter, is called

A. louver
B. stop
C. horn
D. rebate.
Answer» E.
73.

For effective drainage, the finished surface of flat roof should have a minimum slope of

A. 1 in 20
B. 1 to 50
C. 1 in 10
D. 1 in 5.
Answer» B. 1 to 50
74.

The ceiling height of a building is

A. between ceiling and ground level
B. between ceiling and floor level
C. upto roof above ground level
D. upto ceiling from the ground level.
Answer» C. upto roof above ground level
75.

Pick up the correct statement about silt soil from the following :

A. the silt soil has particle size from 0.02 mm to 0.06 mm.
B. in organic fine grained silt soil possesses no plasticity.
C. the least plastic type normally consists of more or less equi-dimensional grains of quartz
D. all the above.
Answer» E.
76.

A stair should not have pitch more than

A. 25°
B. 30°
C. 40°
D. 50°
Answer» D. 50°
77.

The service area in a building means the area occupied by

A. stairs
B. toilets
C. light and shafts
D. all the above.
Answer» E.
78.

Raft foundation are generally preferred to when the area required for individual footing, is more than

A. 25% to total area
B. 30% of total area
C. 40% to total area
D. 50% of total area.
Answer» E.
79.

An ordinary concrete may be made water proof by adding

A. pudlo
B. impermo
C. snowcem
D. all of these.
Answer» E.
80.

The minimum thickness of walls built in cement mortar (1 : 6) for a single storey building, is

A. 10 cm
B. 15 cm
C. 20 cm
D. 25 cm
Answer» D. 25 cm
81.

The concrete slump recommended for columns, is

A. 25 to 50 mm
B. 25 to 75 mm
C. 75 to 125 mm
D. 50 to 100 mm.
Answer» D. 50 to 100 mm.
82.

In grillage foundations, distance between flanges of grillage beams, is kept

A. 40 cm
B. equal to flange width
C. twice the flange width
D. maximum of (a), (b) and (c).
Answer» D. maximum of (a), (b) and (c).
83.

Pick up the consideration to the taken while designing a hospital from the following :

A. the operation theatre unit to be detached as it requires sterlized zone but near the ward for the patients and doctor
B. the mortuary should be detached from the main circulation with a postmortem room
C. causalty unit should be provided a separate entrance
D. all the above.
Answer» E.
84.

The bearing capacity of a water logged soil, may be improved by

A. grouting
B. chemical action
C. drainage
D. compaction.
Answer» D. compaction.
85.

The form work from the sides of beams can be removed only after

A. 1 day
B. 4 days
C. 7 days
D. 14 days.
Answer» B. 4 days
86.

The range of spread from the wall base to outer edge of a brick work foundation does not exceed

A. 1/2 horizontal to 1 vertical
B. 2/3 horizontal to 1 vertical
C. 1 horizontal to 1 vertical
D. 2 horizontals to 1 vertical.
Answer» D. 2 horizontals to 1 vertical.
87.

The local swelling of a finished plaster, is termed

A. cracking
B. dubbing
C. blistering
D. hacking.
Answer» D. hacking.
88.

The lower half portion between crown and skew back of the arch, is called

A. spandril
B. haunch
C. springing
D. soffit.
Answer» C. springing
89.

An arch may fail due to

A. uneven settlement of abutments
B. sliding of voussoirs
C. crushing of the material
D. all the above.
Answer» E.
90.

For different layers of cement concrete floor. Pick up the incorrect statement from the following :

A. The lowest layer consists of consolidated ground
B. A 10 cm thick clean sand is laid on consolidated ground
C. A 10 cm lime concrete (1 : 4 : 8) is laid on clean sand
D. A 10 cm thick cement concrete (1 : 2 : 4) is laid on top layer.
Answer» E.
91.

Safe bearing capacity of black cotton soil varies from

A. 2 to 3 t/m²
B. 5 to 7.5 t/m²
C. 8 to 10 t/m²
D. 10 to 12 t/m².
Answer» C. 8 to 10 t/m²
92.

In ordinary residential and public buildings, the damp proof course is generally provided at

A. ground level
B. plinth level
C. water table level
D. midway ground level and watertable level.
Answer» C. water table level
93.

The Auger boring method is not suitable for

A. very hard soil
B. cemented soil
C. vary soft soil
D. all the above.
Answer» E.
94.

Brick nogging type of partition wall, is constructed by

A. laying bricks as stretchers in cement mortar
B. laying bricks as headers in cement mortar
C. reinforcing brick wall with iron straps
D. constructing brick work within a wooden framework.
Answer» E.
95.

The process of working a flat for the finishing coat, is known

A. dubbing out
B. floating
C. knetting
D. blistering.
Answer» C. knetting
96.

The inclined surface of an abutment to receive the arch, is known as

A. skew back
B. soffit
C. spandril
D. haunch.
Answer» B. soffit
97.

The vertical side member of a shutter frame, is known

A. style
B. reveal
C. mullion
D. post.
Answer» B. reveal
98.

Vertical construction joints are provided where the shearing forces are minimum in the case of

A. slabs
B. beams
C. girders
D. all of these.
Answer» E.
99.

The sound which continues even after its source is cut off, is called

A. reverberation
B. echo
C. intensity of sound
D. interference.
Answer» B. echo
100.

The concrete slump recommended for foundations, is

A. 25 to 50 mm
B. 30 to 125 mm
C. 50 to 100 mm
D. 75 to 125 mm
Answer» D. 75 to 125 mm